u.foo = "bye", u.baz = "hi", v.foo = !1, m.foo = "hi", ro.foo = "not allowed", num[0] = 1, num["0"] = "ok";
const sym = Symbol();
both.s = "ok", both[0] = 1, both[1] = 0, both[0] = "not ok", both[sym] = "not ok";
